/**
  * Update the specified Products in storage.
  * @param  int              $id
  * @param UpdateProductsRequest $request
  * @return Response
  */
 public function update($id, UpdateProductsRequest $request)
 {
     $products = $this->productsRepository->find($id);
     if (empty($products)) {
         Flash::error('Products not found');
         return redirect(route('products.index'));
     }
     $products = $this->productsRepository->updateRich($request->all(), $id);
     Flash::success('Products updated successfully.');
     return redirect(route('products.index'));
 }